The writing process for the majority of Metallicaâs albums have followed the same process. A large slew of guitar riffs written primarily by James Hetfield, sometimes Kirk Hammett, and rarely the bandâs bass player, (that now being bass virtuoso Robert Trujillo) are reviewed and selected.
Lucknow, India (annual mean PM2.5, ug/m3: 96) The capital city of Uttar Pradesh is among the most polluted cities in the country. The lack of transport infrastructure and growing number of vehicles exacerbates the problem, according to India's Centre for Science and Environment.
(CNN) -- Air quality in most cities that monitor their pollution levels exceed what the World Health Organization deems as safe. Delhi has the highest level of the airborne particulate matter, PM2.5 considered most harmful to health, with 153 micrograms. Not far behind is another Indian city, Patna with 149 micrograms.nd the world's most polluted city is... Air pollution has spread by increasing reliance on fossil fuels, coal-fired power plants, cars and the use of biomass for cooking and heating.